:root{
  --night:#1E2251; --night-2:#2A2F6E; --night-3:#151938; --coin:#FFC83D; --mint:#2DD4BF;
  --chalk:#F2F4FA; --paper:#FFFFFF; --ink:#171A3A; --ink-2:#4A4F78; --line:#DDE1F0;
  --display:"Bricolage Grotesque", "Trebuchet MS", sans-serif;
  --body:"Atkinson Hyperlegible", Verdana, sans-serif;
  --wrap:1160px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;background:var(--chalk);color:var(--ink);font:400 1.0625rem/1.6 var(--body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--night-2)}
a:focus-visible,button:focus-visible{outline:3px solid var(--coin);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--coin);color:var(--ink);padding:8px 14px;z-index:30}
.skip:focus{left:12px;top:12px}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}

/* header */
.top{background:rgba(30,34,81,.96);color:#fff;position:sticky;top:0;z-index:20;backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none;font:800 1.2rem/1 var(--display);letter-spacing:-.01em}
.brand img{width:42px;height:42px;border-radius:50%}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;padding:8px 12px;border-radius:999px;font-weight:700;font-size:.97rem}
.nav a:hover,.nav a[aria-current]{background:var(--night-2)}

/* hero: wall of worlds */
.hero{position:relative;background:var(--night-3);color:#fff;overflow:hidden;isolation:isolate}
.wall{position:absolute;inset:-40px -40px auto -40px;display:grid;grid-template-columns:repeat(13,1fr);gap:10px;transform:rotate(-6deg);opacity:.55;z-index:-2}
.wall img{width:100%;aspect-ratio:2/3;object-fit:cover;border-radius:6px}
@media (prefers-reduced-motion:no-preference){.wall{animation:drift 60s linear infinite alternate}@keyframes drift{from{translate:0 0}to{translate:-80px -60px}}}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(21,25,56,.98) 0%,rgba(21,25,56,.92) 42%,rgba(21,25,56,.55) 75%,rgba(21,25,56,.35) 100%),linear-gradient(0deg,rgba(21,25,56,1) 0%,rgba(21,25,56,0) 30%)}
.hero .wrap{padding-top:72px;padding-bottom:40px}
.hero h1{font:800 clamp(2.5rem,6vw,4.6rem)/1 var(--display);letter-spacing:-.03em;margin:0 0 20px;max-width:12ch}
.hero p.lede{font-size:1.18rem;color:#DADDF6;max-width:44ch;margin:0 0 28px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;font:700 1rem/1 var(--body);padding:15px 22px;border-radius:12px;text-decoration:none;border:0;cursor:pointer}
.btn-coin{background:var(--coin);color:var(--ink);box-shadow:0 4px 0 #C99512}
.btn-coin:hover{transform:translateY(1px);box-shadow:0 3px 0 #C99512}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:2px solid rgba(255,255,255,.35)}
.btn-ghost:hover{border-color:#fff}
.stats{display:flex;gap:28px;flex-wrap:wrap;margin:40px 0 0;padding:0;list-style:none;color:#C7CBF0}
.stats strong{display:block;font:800 1.9rem/1 var(--display);color:#fff}

/* level select */
.levels{padding:8px 0 56px;background:var(--night-3)}
.levels h2{color:#fff;font:800 1.4rem/1.2 var(--display);margin:0 0 14px}
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.level{all:unset;cursor:pointer;display:grid;grid-template-columns:auto 1fr;gap:2px 16px;align-items:center;background:var(--night);color:#fff;border-radius:18px;padding:18px 20px;border:2px solid rgba(255,255,255,.08);transition:border-color .15s}
.level:hover{border-color:rgba(255,255,255,.4)}
.level[aria-pressed="true"]{background:var(--coin);color:var(--ink);border-color:var(--coin)}
.level:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.level .num{grid-row:span 2;font:800 3.2rem/1 var(--display);width:1.1em;text-align:center}
.level .ages{font:800 1.25rem/1.1 var(--display)}
.level .what{font-size:.95rem;opacity:.9}

/* sections */
main section{padding:56px 0}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:6px}
h2.sec{font:800 clamp(1.7rem,3.2vw,2.4rem)/1.1 var(--display);letter-spacing:-.02em;margin:0}
.muted{color:var(--ink-2)}
.intro{max-width:60ch;margin:6px 0 24px}

/* new releases */
.feature{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:center;background:var(--paper);border-radius:28px;padding:32px;box-shadow:0 1px 0 var(--line)}
.feature img{border-radius:8px;box-shadow:0 22px 40px rgba(23,26,58,.28);transform:rotate(-2deg)}
.feature .kicker{font-weight:700;color:var(--ink-2);margin:0 0 6px}
.feature h3{font:800 clamp(1.7rem,3vw,2.3rem)/1.08 var(--display);margin:0 0 14px;letter-spacing:-.02em}
.hook{font:700 1.3rem/1.35 var(--display);margin:0 0 14px;max-width:34ch}
.feature p{max-width:60ch}
.mini{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:24px}
.mini a{display:grid;grid-template-columns:72px 1fr;gap:12px;align-items:center;text-decoration:none;color:var(--ink);background:var(--paper);border-radius:16px;padding:12px}
.mini img{border-radius:4px}
.mini span{font-weight:700;font-size:.95rem;line-height:1.3}
.mini small{display:block;color:var(--ink-2);font-weight:400}

/* shelf (holiday) */
.shelf{display:flex;gap:22px;overflow-x:auto;padding:6px 4px 0;scroll-snap-type:x mandatory}
.book{flex:0 0 160px;scroll-snap-align:start;padding-bottom:12px}
.book img{width:160px;aspect-ratio:2/3;object-fit:cover;border-radius:5px;box-shadow:0 10px 20px rgba(0,0,0,.28)}
.book .t{font-weight:700;font-size:.93rem;line-height:1.3;margin:10px 0 6px}
.buy{display:flex;gap:6px;flex-wrap:wrap}
.buy a{font-size:.8rem;font-weight:700;padding:5px 8px;border-radius:8px;background:var(--paper);border:2px solid #CBD0E8;color:var(--ink);text-decoration:none}
.buy a:hover{border-color:var(--night)}
.buy a.primary{background:var(--coin);border-color:var(--coin)}
.shelf-line{border-bottom:10px solid var(--night);border-radius:0 0 6px 6px}

/* filters */
.moods{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 22px}
.mood{all:unset;cursor:pointer;padding:8px 14px;border-radius:999px;background:var(--paper);border:2px solid #D5D9EC;font-weight:700;font-size:.95rem}
.mood[aria-pressed="true"]{background:var(--night);color:#fff;border-color:var(--night)}
.mood:focus-visible{outline:3px solid var(--coin);outline-offset:2px}
.count{font-size:.95rem}

/* world cards */
.worlds{display:grid;gap:22px}
.world{--w:#1E2251;background:var(--w);color:#fff;border-radius:26px;padding:28px 30px 22px;display:grid;grid-template-columns:minmax(260px,.9fr) 1.6fr;gap:28px;position:relative;overflow:hidden}
.wbg{position:absolute;right:-6%;top:-10%;bottom:-10%;width:62%;background-size:cover;background-position:center 75%;filter:blur(10px) saturate(1.2);opacity:.32;mask-image:linear-gradient(90deg,transparent,#000 45%);-webkit-mask-image:linear-gradient(90deg,transparent,#000 45%)}
.wtext{position:relative;z-index:1}
.world::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 80% at 0% 0%,rgba(255,255,255,.10),rgba(255,255,255,0) 60%);pointer-events:none}
.world[hidden]{display:none}
.world h3{font:800 1.7rem/1.08 var(--display);margin:0 0 4px;letter-spacing:-.015em}
.world h3 a{color:#fff;text-decoration:none}
.world h3 a:hover{text-decoration:underline;text-decoration-color:var(--coin);text-decoration-thickness:3px;text-underline-offset:4px}
.world .by{margin:0 0 12px;color:rgba(255,255,255,.78);font-size:.98rem}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 14px}
.tag{font-size:.85rem;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.14);color:#fff}
.tag.age{background:var(--coin);color:var(--ink)}
.world blockquote{margin:0 0 12px;font:700 1.12rem/1.4 var(--display);color:#fff;max-width:36ch}
.world .pitch{margin:0 0 14px;color:rgba(255,255,255,.85);max-width:46ch;font-size:.98rem}
.world .more{color:#fff;font-weight:700}
.world .shelf{position:relative;z-index:1;align-self:end}
.world .book .t{color:#fff}
.world .buy a{background:rgba(255,255,255,.95);border-color:transparent}
.world .buy a.primary{background:var(--coin)}
#none{margin-top:10px}

/* parents strip */
.promises{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:18px}
.promises h3{font:800 1.15rem/1.2 var(--display);margin:0 0 6px}
.promises p{margin:0}
.panel{background:var(--paper);border-radius:24px;padding:32px}

/* printable */
.printable{display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:center}
.printable img{border-radius:8px;box-shadow:0 12px 26px rgba(23,26,58,.18);transform:rotate(-2deg)}

/* series page */
.series-hero{--w:#1E2251;position:relative;background:var(--w);color:#fff;overflow:hidden;isolation:isolate}
.series-hero .bg{position:absolute;right:0;top:0;bottom:0;width:60%;background-size:cover;background-position:center 80%;opacity:.4;filter:blur(8px) saturate(1.15);z-index:-1;mask-image:linear-gradient(90deg,transparent,#000 50%);-webkit-mask-image:linear-gradient(90deg,transparent,#000 50%)}
.series-hero .wrap{padding-top:40px;padding-bottom:44px}
.series-hero h1{font:800 clamp(2.2rem,5vw,3.6rem)/1.02 var(--display);margin:0 0 12px;letter-spacing:-.025em;max-width:16ch}
.series-hero p{color:rgba(255,255,255,.88);max-width:56ch;margin:0 0 12px}
.crumb{color:rgba(255,255,255,.75);font-size:.95rem}
.crumb a{color:#fff}
.book-row{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:36px 0;border-bottom:2px solid var(--line)}
.book-row img{border-radius:8px;box-shadow:0 16px 30px rgba(23,26,58,.26)}
.book-row .num{font-weight:700;color:var(--ink-2);margin:0 0 4px}
.book-row h2{font:800 clamp(1.5rem,2.6vw,2rem)/1.1 var(--display);margin:0 0 12px;letter-spacing:-.015em}
.book-row .hook{color:var(--ink);max-width:42ch}
.book-row p{max-width:64ch}
.book-row .buy a{font-size:.95rem;padding:10px 16px}
.note{font-size:.9rem;color:var(--ink-2)}
main ul{max-width:72ch}

/* prose pages */
.prose{max-width:68ch}
.prose h1{font:800 clamp(2rem,4.4vw,3rem)/1.08 var(--display);letter-spacing:-.02em;margin:0 0 14px}
.prose h2{font:800 1.4rem/1.2 var(--display);margin:32px 0 8px}

/* footer */
.foot{background:var(--night);color:#C9CDF0;padding:44px 0 36px;margin-top:30px;font-size:.92rem}
.foot a{color:#fff}
.foot .cols{display:grid;grid-template-columns:1.3fr 1fr;gap:30px}
.foot p{margin:0 0 10px}
.foot .fine{max-width:70ch}

@media (max-width:960px){
  .world{grid-template-columns:1fr;padding:24px 22px 18px}
  .mini{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .wall{grid-template-columns:repeat(7,1fr)}
  .hero .wrap{padding-top:44px}
  .level-grid,.promises{grid-template-columns:1fr}
  .feature{grid-template-columns:1fr;padding:24px}
  .feature img{max-width:200px}
  .printable{grid-template-columns:1fr}
  .printable img{max-width:220px}
  .book-row{grid-template-columns:120px 1fr;gap:18px}
  .foot .cols{grid-template-columns:1fr}
  .series-hero .bg{width:100%;opacity:.25}
  .wbg{width:100%;opacity:.22}
}
@media (max-width:520px){
  .nav{gap:2px}.nav a{padding:6px 9px;font-size:.92rem}
  .top .wrap{padding-top:8px;padding-bottom:8px}
  .mini{grid-template-columns:1fr}
  .book{flex-basis:136px}.book img{width:136px}
  .book-row{grid-template-columns:1fr}
  .book-row img{max-width:180px}
}

/* ---- v3: reading guides */
.guide{padding:36px 0 64px}
.guide .wrap{max-width:920px}
.guide .crumb{color:var(--ink-2);margin:0}
.guide .crumb a{color:var(--night-2);font-weight:700}
.guide h1{font:800 clamp(2rem,4.6vw,3.1rem)/1.05 var(--display);letter-spacing:-.025em;margin:8px 0 10px}
.guide .updated{color:var(--ink-2);font-size:.95rem;margin:0 0 18px}
.guide .lead p{font-size:1.15rem;max-width:64ch}
.guide section p,.guide section li{max-width:68ch}
.guide section li{margin:0 0 8px}
.guide h2{font:800 clamp(1.45rem,2.8vw,1.95rem)/1.15 var(--display);letter-spacing:-.015em;margin:44px 0 10px}
.toc{background:var(--paper);border-radius:16px;padding:16px 20px;margin:22px 0 4px;box-shadow:0 1px 0 var(--line)}
.toc ul{margin:8px 0 0;padding-left:20px;columns:2;column-gap:28px}
.toc li{margin:0 0 4px;break-inside:avoid}
.picks{display:grid;gap:16px;margin-top:16px}
.pick{--w:#1E2251;display:grid;grid-template-columns:120px 1fr;gap:22px;background:var(--paper);border-radius:20px;padding:20px;box-shadow:0 1px 0 var(--line);border-left:8px solid var(--w)}
.pick img{width:120px;height:auto;border-radius:6px;box-shadow:0 10px 20px rgba(23,26,58,.22)}
.pick h3{font:800 1.35rem/1.15 var(--display);margin:0 0 4px;letter-spacing:-.01em}
.pick h3 a{color:var(--ink);text-decoration:none}
.pick h3 a:hover{text-decoration:underline;text-decoration-color:var(--coin);text-decoration-thickness:3px;text-underline-offset:4px}
.pick .meta{color:var(--ink-2);font-size:.92rem;margin:0 0 10px}
.pick blockquote{margin:0 0 8px;font:700 1.08rem/1.4 var(--display)}
.pick p{margin:0 0 8px}
.pick .start{font-size:.9rem;color:var(--ink-2);margin:10px 0 6px}
.pick .start a{font-weight:700}
.faq h3{font:800 1.12rem/1.3 var(--display);margin:22px 0 4px}
.faq p{margin:0}
.more-h{font:800 1.5rem/1.2 var(--display);margin:48px 0 14px}
.guide-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.gcard{display:block;background:var(--paper);border-radius:20px;padding:20px;text-decoration:none;color:var(--ink);box-shadow:0 1px 0 var(--line);transition:transform .15s,box-shadow .15s}
.gcard:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(23,26,58,.12)}
.gcovers{display:flex;height:96px}
.gcovers img{width:64px;height:96px;border-radius:5px;box-shadow:0 6px 14px rgba(23,26,58,.25);object-fit:cover}
.gcovers img+img{margin-left:-18px}
.gcovers img:nth-child(1){transform:rotate(-4deg)}
.gcovers img:nth-child(3){transform:rotate(4deg)}
.gcard h3{font:800 1.2rem/1.2 var(--display);margin:14px 0 6px}
.gcard p{margin:0;color:var(--ink-2);font-size:.97rem}
#guides{padding-bottom:8px}
#guides .sec-head a{font-weight:700}
@media (max-width:620px){
  .pick{grid-template-columns:84px 1fr;gap:14px;padding:14px;border-left-width:6px}
  .pick img{width:84px}
  .toc ul{columns:1}
}
.guide section{padding:0}
#guides .guide-cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
@media (max-width:620px){
  .top .wrap{gap:4px 16px;padding-top:8px;padding-bottom:6px}
  .nav{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;width:calc(100% + 16px);margin:0 -8px}
  .nav::-webkit-scrollbar{display:none}
  .nav a{padding:7px 9px;font-size:.92rem;white-space:nowrap}
}